- Vibration measurements are one of the fastest available indicators to providing information about the state of machinery, devices and construction – in the case of vessels there are: a strong hull, superstructure, masts, machines and devices foundations generating vibrations. Measurements are made not only during delivery-acceptance tests (i.m. sea and dock trials) in the shipyard, but also they are used for monitoring of the machinery, equipment and structural elements conditions during the operation of the ship.
- The most common cause of ship structural elements damage is the resonance with excitations frequencies coming from the main propulsion system or frequencies of excitations generated by mechanisms such as generator sets, compressors, fans and pumps, etc. As a result of construction elements resonance with excitations generated by machineries and devices can be damages of machine components, e.g. machine body cracks, damages of the rotor bearing or the rotor itself (eg. in fans), machine foundations cracks or other construction elements in the vicinity of excessively vibrating machinery or device. Excessive vibrations of some machinery or device have an effect on the work of the adjacent mechanisms and may cause damages or disturbing of their work.
- Analysis of the vibration frequency (spectral analysis) precisely identify the source and cause of the construction, machinery or device excessive vibration. Quick diagnosis of mechanism malfunction allows for quick vessel`s crew reaction and to avoid high repair costs in the event of a major accident. This is particularly important during the standard vessels`operation, when there is no time for downtimes in a shipyard or a port and damages removing .
Scope of offered measurements:
- Linear vibration of ship mechanisms and devices (including sea and dock trials) + recommendations in the report form;
- Linear vibration of a hull its selected zones + recommendations in the report form;
- Linear vibration of a superstructure and its selected zones + recommendations in the report form.